A dark theme for the atmosphere is mostly “confirmed” as for the color/texture, I’d personally stick with solid colors for the most part of buildings for example (doesn’t mean that there won’t be any improvements regarding the details!)

Honestly, detailed textures on low-poly games look awful, makes it look like a 2-hour-made cheap horror game you find in something like Newgrounds. A darker theme and color scheme is surely a really good decision, design-wise, but the texture should still be solid. Or at least with very minimalistic details on smaller objects like backpacks, weapons, trashcans, road signs etc. etc.
Pretty much an option in-between.

Or at least with very minimalistic details on smaller objects like backpacks, weapons, trashcans, road signs etc. etc.
Pretty much an option in-between.

From what it looks like based on the devlogs, this is exactly what Nelson is going for. All the materials have noticeable textures to make the world feel a little less blocky, but doesn’t overdo it in any capacity. They aren’t “low-res” in the sense that they look like some cheap Unity Horror game, and they stay pretty consistent in the way they are implemented.